package java201921123090;

import java.util.Scanner;
public class java {
	public static void main(String args[]) {
		Scanner sc = new Scanner(System.in);
		
		while (sc.hasNext()) {
			int x = sc.nextInt();
			int y = sc.nextInt();
			System.out.println(x+y);
            System.out.println(x+y);
		}
		sc.close();
	}
     
}
